The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in harsh conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors ensure durability and environmental compliance. Utilizing M39029 rear release crimp contacts, they guarantee secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Overall, the MIL-DTL-38999 Series II connectors are essential for military, aerospace, and industrial applications where ruggedness and performance are paramount.